*You can practice badminton by yourself. *You can practice attacks and defenses *You can control the rate of shuttlecock launch (2/6 seconds) *The head can be fixed or rotated left and right (with control lever) *Up to 24 shuttlecocks can be installed *You can adjust the height to 189 ~ 223cm *110 or 220v power supply is used If you do not have power, you can use alkaline batteries